Cap for paste tubes



July 5, 1932- scHNr-:ER

CAP FOR PASTE TUBES Filed nay 25, 1951 .lNvENToR Y Loms Schnee?.

BY HIS A'ITORNEY Patented July 5, 1932 LOUIS SCHNEER, F WATEBBUBY, CONNECTICUT CAP FUR PASTE TUBES Application led lay 25, 1931.

This invention relates to collapsible paste tubes, and more particularly to a rotatable cap adapted to be permanently attached to the discharge outlet neck of said tube.

One object of the present invention is to provide a paste tube cap of the above nature which will be limited in its sliding motion in both directions.

A further object is to provide a device of the above nature which will cut olf the ribbon of extruded material cleanly and sharply without the necessity of wiping the tube upon a brush.

A further object is to provide a device of the above nature which will be simple in construction, inexpensive to manufacture, easy to install and manipulate, compact, ornamental in appearance, and very e'iiieient and durable in use.

With these and other objects in view, there have been illustrated on the accompanying drawing three forms in which the invention may be conveniently embodied in practice.

In the drawing:

Fig. 1 represents a side elevation of a paste tube with the improved cap permanently attached thereto.

Fig. 2 is an enlarged fragmentary side elevation of the same shown partly in section.

Fig. 3 is a transverse sectional view of the same taken along the broken line 3-3 of Fig. 2, looking downwardly, with the cap in open position.

Fig. 4 is a fragmentary view in elevation of the upper part of a tube having a. modified form of cap attached thereto.

Fig. 5 is a perspective view of the cap shown in Fig. 4, illustrating the interior construction thereof.

Fig. 6 is an enlarged fragmentary view in elevation of another modified form of cap and the upper part of the paste tube to which it is attached.

Fig. 7 is a transverse sectional view of the same taken along the line 7--7 of Fig. 6, the cabeing in open position.

-eferrlng now to the drawing in which like reference numerals denote corresponding parts throu hout the several views, the numeral 10 indicates a paste tube of the usual Serial No. 539,784.

construction having one end flattened and provided with a closure clip 11, the other end of thetube having a conical shoulder 12 terminatmg in an open discharge neck 13 through which the paste is adapted to be extruded. In the first form of the invention shown 1n Figs. 1, 2 and 3, the neck 13 is provided ad]acent its top edge with a vertical orifice 14 of rectangular shape below and to one slde of which is a horizontal elongated lug 15 for a purpose explained below.

I n order to close the open neck 13 and prevent the discharge of paste through the orifice 14 until desired, provision is made of a cylindrical cap 16 having a hexagonal head 17 for convenience in manipula-tion, said cap being` preferably formed of plated brass or any other suitable rustproof material. The cap 16 is provided with a rectangular vertim cal slot 18 having the same size as the slot 14 and adapted to be brought into alinement therewith when the cap is twisted in a counter-clockwise direction as far as it will go. The twisting motion of the cap in both directions is limited by a horizontal rectangular slot 19 within which lits the lug 15, as clearly shown in Figs. 1 and 2.

To permanently lock the cap 16 upon the neck 13 of the tube 10, the slot 19 has a verso tical side slot 20 extending down through the lower edge of said cap. A reduced tongue section 21 extends from one side of said side slot 20 and is adapted to be inserted through a rectangular eye 22 adjacent the other side 85 of said slot 20. The tongue 21 is then bent backwardly upon itself, as clearly shown in Figs. 1, 2 and 3, therebysecurely locking the cap 16 in position.

In the modified form o the invention shown in Figs. 4 and 5, a cap 23 is disclosed which is similar to the first form of cap, except that instead of having a tongue and eye locking connection at the bottom, a resilient tongue 24 is provided below the horizontal 95 slot 19. The tongue 24 has a beveled recess 25 on its inner surface for permitting the cap to be readily assembled upon the neck of the tube by the simple operation of sliding said cap longitudinally upon the neck meer?? ith the nib i5 in iiiinement with seid recess i. ribis ivil cause the resilient tongue @el to 'icl-:l outuurdlv und snep beck underneath .h nib in the nesiion shown in viigr. 4. The ree end oi the tongue 24 is provided with a reduc 1d ing'er lo end has an inclined tion 2T whereby therev wili be no danger oi breekin i oii" unifi tongue when the cap is 'This forni oi cup will pre*- secn l l y n some strong rustproo iuoid or plated nietnl,

of the invention our.

'3, the oriiices ere maid-e ovei shaped, in below the iociiing inf. t

the cef) to be esse n @pera/ion ln the operation oi'E euch oi the three forms of the invention, when it is desired to extrude the contents of the peste tube, it Will only be necessary to turn the cap 16 in e counter-clockwise direction as for es it will go. The orilce of the cap will then be in alnernent with the oriice of the tube neck 13. The operator will then press upon the tube l0 causing peste to flow out through the neck and cap to the form of a ribbon which muy be received on e tooth. brush or any other implement. rlhe ribbon of paste may then be shea-red oid in e, aleen cut manner by twisting the cap in the reverse direction as far as it will go.

lf desired, the side of the cap containing the discharge orifice may be mede reletively thin so as to obtain :i knife edge cutting e@ tion When the tube is being closed, thus preventing any substantiel amount of paste re maining on the outside of the neck.

While there have been disclosed in this specification three forms in which the invention may be embodied, it is to be understood that these forms are shown for the purpose of illustration only, and that the invention is not to be limited to the specific disclosures but may be modified and embodied in Various other forms Without departing from its spirit. In short, the inventionincludes all the modifications and embodiments coming Within the scope of the following claims.

Having thus fully described the invention, what is claimed as new, and for Which it is desired to secure Letters Patent, is:

l. In an attachment for the necko:l a paste tube having an outstanding lug in the side thereof, e. rotery oep for fitting over seid neck, seid carp having n transverse slot 'for fitting over seid lug to iimit the twisting ot said cap and to lock it on sei neck, and e fieiiible tongue below seid slot capable oil yieiding outwardly upon engeffing; seid inc ube having en hereof, e rotary cap lier fitti eck, seid having e. verse at-ting over seid lug to iimit the tvvis cup and to lool: it on s bie tongue below seid l l 'l .1- 1 yielding; outwardly upon e y aging, s i ,5. '.L .1," J L.' Y e; o permit ene fitting ov Y can oven ser.

"Y 1 i i f: neen, suie. tongue n vel-ed recess ier 'n n Jij Ofi.. 

